A short time after I
learned Smalltalk, I came across another effort to build a language out of
objects, the Common Lisp Object System.

Here are the CLOS
like objects we built atop of Smalltalk to implement our multimethods.

(Explain these, one
by one…)

In fact, we went
well beyond simple multmethods. The collection of metabojects we built is a
surprisingly complete / comprehensive implementation of the CLOS MOP. The
major missing elements are multiple inheritance, and around methods.

Choreographer is a
better name for MethodCombination that is Method Combination. A number of the
names are rather droll. Is this in part to blame for this works relative, and
undeserved, obscurity?

There is a potential
synergy between these two mops that I regret to say remains undemonstrated to
this day. Between the two of ‘em, they’ve nearly got the space covered. But
that’s a talk for another day.